Diah W3b is a cutting-edge web design and development company headquartered in Washington, DC Metro Area. With a team more than a decade of experience, Diah W3b has been providing its clients first-to-market innovative web solutions that help businesses stay competitive and grow. The current generation revolves around the web as primary means to run your business, serve your clients, and communicate your branded message to the World. It turns out we love building websites, app, marketing, branding all together. Our team has built hundreds of custom websites and mobile applications together. You'll find our development process to be organized, yet still relaxed, casual, flexible and fun. Because it should be. Services at a glance.